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dnspython's RRSIG.to_text() converts the signature inception/expiration
fields by calling time.gmtime(), which on 32-bit platforms raises
OverflowError for values past 2038-01-19 (INT32_MAX). Several DNSSEC
test fixtures use far-future expirations: the precomputed RRSIGs in
the dnssec test's rsasha1.example.db.in zone expire in 2093, ans4 of
the chain test hardcodes 2090, and ans10 of the dnssec test uses
2**32-1 (year 2106). Whenever a response carrying such an RRSIG is
formatted with str()/to_text() the overflow propagates out and either
fails the test (when triggered in isctest.query's debug logging) or
kills the asyncserver-based ans* server (when triggered in its
response logger), which in turn cascades into "Failed to stop
servers" teardown errors and SERVFAIL responses for subsequent tests.
Wrap the to_text() calls in isctest/query.py and the str(response)
call in asyncserver's _log_response() with try/except OverflowError,
falling back to a placeholder message. The conversions are only used
for debug logging, so losing the human-readable form there does not
affect what the tests actually validate.
Assisted-by: Claude:claude-opus-4-7
(cherry picked from commit
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| .. | ||
| check | ||
| confgen | ||
| delv | ||
| dig | ||
| dnssec | ||
| named | ||
| nsupdate | ||
| plugins | ||
| rndc | ||
| tests | ||
| tools | ||
| Makefile.am | ||